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Estimates Exhaust and Emissions Rear Oxygen Sensor Replacement

Mercedes-Benz Maybach S600 Rear Oxygen Sensor Replacement

An oxygen sensor replacement is usually a pretty straightforward and affordable task. We stress the term usually because replacement cost can vary, depending on what type of car you have.

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Mercedes-Benz Maybach S600 Rear Oxygen Sensor Replacement

RepairSmith offers upfront and competitive pricing. The average cost for Mercedes-Benz Maybach S600 Rear Oxygen Sensor Replacement is $307. Drop it off at our shop and pick it up a few hours later, or save time and have our Delivery mechanics come to you.

Car
Location
Quoted on
Price
2016 Mercedes-Benz Maybach S600
6.0L V12 Turbo Base • 45,000 miles
Los Angeles CA 90062
Nov 11, 2020
$270 - $330
2016 Mercedes-Benz Maybach S600
6.0L V12 Turbo Base • 11,000 miles
Valencia CA 91354
Nov 5, 2020
$263 - $321
2017 Mercedes-Benz Maybach S600
6.0L V12 Turbo Base • 11,000 miles
Murrieta CA 92562
Nov 1, 2020
$301 - $367
2016 Mercedes-Benz Maybach S600
6.0L V12 Turbo Base • 37,000 miles
La Jolla CA 92092
Oct 27, 2020
$260 - $318
2017 Mercedes-Benz Maybach S600
6.0L V12 Turbo Base • 49,000 miles
Pasadena CA 91107
Oct 22, 2020
$279 - $341
2017 Mercedes-Benz Maybach S600
6.0L V12 Turbo Base • 64,000 miles
San Diego CA 92132
Oct 14, 2020
$284 - $348
2017 Mercedes-Benz Maybach S600
6.0L V12 Turbo Base • 28,000 miles
San Dimas CA 91773
Oct 4, 2020
$282 - $344
2016 Mercedes-Benz Maybach S600
6.0L V12 Turbo Base • 80,000 miles
Needles CA 92363
Oct 1, 2020
$265 - $323
2017 Mercedes-Benz Maybach S600
6.0L V12 Turbo Base • 27,000 miles
Altadena CA 91003
Sep 28, 2020
$284 - $347
2017 Mercedes-Benz Maybach S600
6.0L V12 Turbo Base • 66,000 miles
Lynwood CA 90262
Sep 26, 2020
$275 - $337
Last Updated:
Jan 21, 2021 4:52 PM
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What is a Rear Oxygen Sensor?

This might blow your mind but…oxygen sensors (O2s) are sensors that measure oxygen. Yep, the sensors calculate the amount of oxygen in the exhaust stream, then share that information with your car’s main computer. Most modern cars have at least two oxygen sensors: one before the catalytic converter and one after the catalytic converter. In case you were wondering, the catalytic converter, which is located in the exhaust system, is an emissions control device that cleans up the fumes leaving your engine. Anyhow, the front oxygen sensor (also known as an upstream oxygen sensor) is a key input to your car’s computer for fuel control. The computer uses information from the sensor to estimate the engine’s air-fuel mixture. Then, it adjusts fuel delivery accordingly. On the other hand, the rear oxygen sensor (also known as a downstream oxygen sensor) primarily monitors the performance of the catalytic converter. The rear sensor has very little, if any, input regarding fuel control. Oh, and one more thing – most modern oxygen sensors have built-in heaters. When you first start your engine when it’s cold, the heater element gets the sensor nice and toasty. That allows the sensor to get up-to-speed and begin operating more quickly.

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Symptoms of a failing Rear Oxygen Sensor

Check engine light

If your car’s rear oxygen sensor isn’t doing its job, chances are, the computer will notice and turn on the check engine light. The device will also store corresponding diagnostic trouble codes (DTCs) in its brain. Your mechanic can retrieve said codes using an electronic device, called a scan tool.

Failed emissions test

Is it time for your routine emissions test? Well, guess what – you’re not going to pass if the check engine light is on from a bad rear oxygen sensor. You also won’t pass if the rear oxygen sensor is out to lunch and it’s preventing your car’s computer from running its system self-tests.

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How urgent is a Rear Oxygen Sensor Replacement?

The rear oxygen sensor is less of a troublemaker than the front oxygen sensor. For the most part, the rear oxygen sensor just polices the catalytic converter. So, it’s unlikely to leave you stranded and it shouldn’t cause any additional harm to your vehicle.

But it will keep that annoying check engine light illuminated and, really, do you want to look at that thing every day? Plus, a bad rear oxygen sensor can cause you to fail a state emissions test – and nobody wants that.

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